13
8
HPX1200/2400/2800
Malfunction
Analysis
on
SMPS
CONTROL
Circuit
8.1
Circuit
Diagram
of
SMPS
CONTROL
8.2
Malfunction
Analysis
on
SMPS
CONTROL
Module
Circuit
Sequence
No.
Circuit
Function
Failure
1
SMPS
Control
‐
The
equipment
is
unavailable
to
start;
‐
Protection
function
will
be
activated
when
in
low
impedance
output;
‐
Cyclic
protection
of
the
switch
power;
‐
Delay
start,
over
‐
voltage
PROT,
low
‐
voltage
PROT
and
over
current
PROT.
Repairing
Guide:
1)
When
repairing
the
control
board,
you
can
cut
every
protect
circuit
gradually
found
the
defective
area!
Summary of Contents for HP-X series
Page 1: ...1 Service Manual HPX Series Applicable Models HPX900 HPX1200 HPX2400 HPX2800...
Page 10: ...10 6 HPX900 Malfunction Analysis on Amplified Part 6 1 Circuit Diagram of Amplifier...
Page 16: ...16 10 HPX1200 Malfunction Analysis on Amplified Part 10 1 Circuit Diagram of Amplifier...
Page 18: ...18 11 HPX2400 2800 Malfunction Analysis on SMPS 11 1 Circuit Diagram of SMPS...
Page 20: ...20 12 HPX2400 2800 Malfunction Analysis on Amplified Part 12 1 Circuit Diagram of Amplifier...
